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An X-ray microscopic study of the vasa vasorum of the human umbilical arteries

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Summary

  1. 1.

    Vasa vasorum were demonstrated in the intra-abdominal part of the umbilical artery from the 20th week.

  2. 2.

    Arterial vasa were demonstrated in the adventitia from the 28th week, originating from the internal iliac artery and the epigastric arteries.

  3. 3.

    The neonatal patterns of vasa vasorum were demonstrated from the 34th week of intrauterine life.

  4. 4.

    The vasa vasorum atrophied in the distal part of the intra-abdominal part of the umbilical artery 48 hours after birth, but remained on the proximal 1.0 cm.

  5. 5.

    No injection medium entered the wall of the extra-abdominal part of the umbilical artery before or after birth.

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References

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Authors and Affiliations

  1. Department of Anatomy, University of Glasgow, W. 2, Glasgow

    John A. Clarke

Authors
  1. John A. Clarke
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Additional information

I am grateful to Dr. A.D.T. Govan and Dr. A.M. MacDonald for providing specimens. I am indebted to the Medical Research Council who gave the x-ray microscope to the Anatomy Department, Glasgow University.

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Clarke, J.A. An X-ray microscopic study of the vasa vasorum of the human umbilical arteries. Zeitschrift für Zellforschung 66, 293–299 (1965). https://doi.org/10.1007/BF00344341

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  • DOI: https://doi.org/10.1007/BF00344341

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